A025667 Exponent of 7 (value of j) in n-th number of form 5^i*7^j.

0, 0, 1, 0, 1, 2, 0, 1, 2, 3, 0, 1, 2, 3, 4, 0, 1, 2, 3, 4, 0, 5, 1, 2, 3, 4, 0, 5, 1, 6, 2, 3, 4, 0, 5, 1, 6, 2, 7, 3, 4, 0, 5, 1, 6, 2, 7, 3, 8, 4, 0, 5, 1, 6, 2, 7, 3, 8, 4, 9, 0, 5, 1, 6, 2, 7, 3, 8, 4, 9, 0, 5, 10, 1, 6, 2, 7, 3, 8, 4, 9, 0, 5, 10, 1, 6, 11, 2, 7, 3, 8, 4, 9, 0, 5, 10, 1, 6, 11, 2, 7, 12, 3, 8, 4

Offset

1,6

Links

Table of n, a(n) for n=1..105.

Crossrefs

Sequence in context: A025645 A233381 A025680 * A025689 A025650 A025674

Adjacent sequences: A025664 A025665 A025666 * A025668 A025669 A025670

Keyword

nonn

Author

David W. Wilson

Status

approved